Life-preserver valve



Sept. 4 1923.

M. C. SCHWEINERT LIFE PRESERVER VALVE Filed July 27, 1918 INVENTOR '%u24 ffwel vzaf I ATTO N EYS j/QLM Patented Sept. 4, 1923.:

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Application filed. July 27, 1918. Serial No. 247.044

To all whom it may concern: 1 I

Be it known that I, MAXIHILIAN CHAnLns SCHWEINERT, a citizen of the United States, resldlng in lVest Hoboken, 1n the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Life-Preserver Valves, of which the following is a specification.

This invention relates to life preserver valves, and aims to iiients therein.

This type of valve is commonly used for inflating life pres'erversor similar devices. It usually comprises a barrel cemented or otherwise secured to the fabric of the preserver, and a cap adapted to screw on the barrel for the purpose of holding the air in the preserver. No check in the barrel is usually provided since such devices are commonly inflated by the mouth and after inflation the finger is usually used to temporarily stop the flow of air out of the preserver while the cap is being adjusted. The cap, therefore, forms a necessary part for the structure and it is important that such caps be secured against loss. The object of the present device is to provide a, cap and its securing means which are of cheap and simple construction.

To this end I provide a cap which is of the type of pneumatic tire valve caps except that.

it has no screw-driver projections at the end of it, and this is secured against loss by a,

cord passing out of the top of the cap and connected to the latter by knotting it on the interior of the cap. The cord is threaded in through the top, and a hole or holes is 7 provided in the side of the cap projection through which the cord may be initially threaded and knotted, after which the knotted end is drawn back through the hole so that it is housed Within the projection.

Referring to the drawings which show the preferred form of the structure,

Figure 1 is an elevation of the valve, showing the cap in place and the valve attached to a lifepreserver, 1

Fig. 2 is a vertical section of the cap on an enlarged scale.

Referring to the drawings, let A indicate the upper portion of a life preserver or other similar device, B the barrel of the valve and C the cap. The barrel is preferably notched or ribbed so that it may be firmly secured to the neck D of the life preserver. The upprovide certain improve I per end of the barrel is commonlyprovided witlr a screw-thread E and the cap; is in-- teriorly screw-threaded as shown at F to lit the thread onthe barrel. Within the cap is a rubber washer Gr which is preferably dome-shaped and above the washer IS a metallic disk 'H which permits the washer to rotate after its lower face comes in con tact with the top of the barrel. v This washer G closes the opening'through the barrel so as to prevent the escape of air. J is a projection formed on the top of the cap which is provided with a hole or aperture K and at one or both sides of the projection are holes L. M isa cord or other flexible connection which is securedat one end to the life preserver'in any suitable way and at the other end isthreaded through the hole K and knotted as shown, so that the cap is prevented from loss.

In securing the cord, the latter is passed down through the opening K andout through one of the openings L, and then knotted. After thatxit is drawn back through the opening L which is large enough to permit the knot to pass through it, until the latter is housed in the projection, the opening K being of smaller diameter and preventing the passage of the knot. One of the openings L facilitates the threading of the cord through the opposite opening, since when the cord is passed downwardly through the opening K, a'small instrument may be inserted through one opening L and the cord passed out through the other opening.

This makes a very cheap and simple connection and one which permits the usual nanipulation of the cap 1n screwlng and unscrewing, since the cord is centrally arranged, and is out of the way of the fingers during application and removal. Further the cord is not liable to become twisted, and the knot is concealed, so that the device is neat and symmetrical in appearance.

"While I have described in detail the preferred form of the invention, it will be understood that I do not wish to be limited thereto, since various changes may be made therein without departing from the. inven tion. s 7

What I claim is l. A cap. for a valve or the like having a seat, and a hollow projection above said seat, and having a hole through the top of such projection, and a hole through the side thereof, whereby a cord may be passed down through both holes and be knotted and drawn upwardly through the side hole.

2. A cap for valves or the like, having a seat, and a hollow projection above said seat a hole through the top of such projection, and two oppositely arranged holes through the side thereof, whereby a cord may be passed down through the hole in the top of the projection, and through one of the side holes, and be knotted and drawn upwardly through such side hole. v

3. The combination with an inflatable bag and a valve stem secured thereto, of a detachable cap for the stern, said cap coniprising a tubular extension terminating in a portion of reduced diameter, said extension also having a hole passing laterally through its wall, and a cord passing through the end of said extension and having a knot located below said reduced portion of the extension, the lateral hole in said extension being adapted to permit said knot to pass through it, one end of said cord being connected to said bag,

t. A screw cap for closing the end of a valve stem, having a threaded portion, a tubular extension, a shoulder between the threaded portion and the tubular extension, and packing seated on said shoulder, the extension having an end opening for an attaching cord to pass through and a side opening large enough to permit the passage of a knot on the end of the attaching cord.

In witness whereof I have hereunto signed my name.

MAXIMILIAN CHARLES SCHWEINERT. 

